I looked at the process demo and I don't know enough about what a triggerbot looks like to know if it was obvious but I did notice a couple things that were odd. The most obvious red flag is the first clip in this video. He seems to be looking at the enemies at rollout, then decides to look at lower i.t. but right before he flicks his view he fires a shot. Seems to me like he was no longer interested in shooting at them because they were so far away but right before he looked away the bot pulled the trigger. This might seem like just a bad flicking habit but 90 percent of the time his scatter aim was extremely smooth. The second part of the video is him shooting at a scout that had been dead for sometime. I have no clue if this is suspicious or maybe just an stv thing but I threw it in there because it seemed odd.
The other thing is that generally his scatter aim seemed extremely smooth but his pistol tracking was much more normal looking. Maybe this is nothing but it seemed strange to me.